SpringBoot开发常用功能

参考：Spring Boot读取配置文件的几种方式

新建一个yml文件，当然properties文件也没问题

zhbin:
  config:
    web-configs:
      name: Java旅途
      age: 20

新建实体类用来映射该配置

@Component
@ConfigurationProperties(prefix = "zhbin.config")
@Data
public class StudentYml {
	
    // webConfigs务必与配置文件相对应，写为驼峰命名方式
    private WebConfigs webConfigs = new WebConfigs();

    @Data
    public static class WebConfigs {
        private String name;
        private String age;
    }
}

WebConfigure接口，重写这个接口可以实现一些基本功能
参考：拦截器

@Configuration
public class WebConfig implements WebMvcConfigurer {

    
    @Override
    public void addFormatters(FormatterRegistry registry) {
        registry.addFormatterForFieldType(LocalDate.class, new USLocalDateFormatter());
    }

    
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("
    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        //过滤swagger
        registry.addResourceHandler("swagger-ui.html")
                .addResourceLocations("classpath:/META-INF/resources/");

        registry.addResourceHandler("/webjars
    @Override
    public void configureMessageConverters(List> converters) {
        //1.需要定义一个convert转换消息的对象;
        FastJsonHttpMessageConverter fastJsonHttpMessageConverter = new FastJsonHttpMessageConverter();
        //2.添加fastJson的配置信息，比如：是否要格式化返回的json数据;
        FastJsonConfig fastJsonConfig = new FastJsonConfig();
        fastJsonConfig.setSerializerFeatures(SerializerFeature.PrettyFormat,
                SerializerFeature.WriteMapNullValue,
                SerializerFeature.WriteNullStringAsEmpty,
                SerializerFeature.DisableCircularReferenceDetect,
                SerializerFeature.WriteNullListAsEmpty,
                SerializerFeature.WriteDateUseDateFormat);
        //3处理中文乱码问题
        List fastMediaTypes = new ArrayList<>();
        fastMediaTypes.add(MediaType.APPLICATION_JSON_UTF8);
        //4.在convert中添加配置信息.
        fastJsonHttpMessageConverter.setSupportedMediaTypes(fastMediaTypes);
        fastJsonHttpMessageConverter.setFastJsonConfig(fastJsonConfig);
        //5.将convert添加到converters当中.
        converters.add(fastJsonHttpMessageConverter);
    }
  @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(new ReqInterceptor()).addPathPatterns("/**");
    }

}